Discrete CYM filter with hue and saturation changes

Abstract

Discrete CYM filter has discrete filter elements that create a color set over a color range. The color range changes both hue and saturation between adjacent color filter elements, thus making the elements and their resultant colors, look more “interesting”.

1 . A color changing system comprising:
 a set of color filters which is mounted to filter light using filters of the set, wherein each said color filter forms a progression of colors within a color space, and where said progression of colors within said filters changes both the hue and also the saturation of filtered colors in the progression in color space.   
   
   
       2 . A system as in  claim 1 , wherein said color filters are located on a color wheel which is rotatable and which has a number of said color filters thereon forming the set. 
   
   
       3 . A system as in  claim 2 , wherein said wheel includes a rotatable hub, and a number of filters arranged around the hub, and where said filters and their order, form said progression of colors. 
   
   
       4 . A system as in  claim 1 , wherein said progression of colors have hues which always increase in a first direction passing from one color filter to another color filter, and saturations which always increase in a second direction, where said first direction and said second direction can be the same or different directions. 
   
   
       5 . A system as in  claim 1 , wherein said color filters have values in chromaticity space which form a non-straight line through said chromaticity space. 
   
   
       6 . A system as in  claim 1 , wherein said color filters collectively form a color set, and where there is a nonlinear relationship said color filters in said color set extending from a beginning point of the color set to an ending point of the color set. 
   
   
       7 . A system as in  claim 6 , wherein said color filters form a relation where any filter n in the set extending from filter  1  to filter x has a value of filter n=filter (n−1)*(nth root of) (filter x−filter  1 ). 
   
   
       8 . A color changing system comprising:
 a set of filters on a holder, in an order, wherein said color filters in said order form a progression of colors within a color space, and where said progression of colors creates a non-straight line in the progression in color space.   
   
   
       9 . A system as in  claim 8 , wherein said color filters are located on a color wheel which is rotatable and which has a number of said color filters thereon forming the set. 
   
   
       10 . A system as in  claim 9 , wherein said wheel includes a rotatable hub, and a number of filters arranged around the hub, and where said filters and their order, form said progression of colors. 
   
   
       11 . A system as in  claim 8 , wherein said color filters change both the hue and also the saturation of filtered colors of filters in the color space. 
   
   
       12 . A system as in  claim 8 , wherein said wheel includes a rotatable hub, and a number of filters arranged around the hub, and where said filters and their order, form said progression of colors. 
   
   
       13 . A system as in  claim 8 , wherein said progression of colors have hues which always increase in a first direction passing from one color filter to another color filter, and saturations which always increase in a second direction, where said first direction and said second direction can be the same or different directions. 
   
   
       14 . A system as in  claim 8 , wherein said color filters collectively form a color set, and where there is a nonlinear relationship between said color filters in said color set extending from a beginning point of the color set to an ending point of the color set. 
   
   
       15 . A system as in  claim 14 , wherein said color filters form a relation where any filter n in the set extending from filter  1  to filter x has a value of filter n=filter (n−1)*(nth root of) (filter x−filter  1 ). 
   
   
       16 . A system as in  claim 8 , wherein said filters are mounted such that part of two filters can be in the beam simultaneously. 
   
   
       17 . A system as in  claim 8 , wherein said color filters collectively form a color set, and where there is a geometric relationship between said color filters in said color set extending from a beginning point of the color set to an ending point of the color set. 
   
   
       18 . A method comprising:
 arranging a first set of color filters to filter light using one area on the set, where each area has a different color filtering characteristic, and where the first set forms a progression of colors within a color space, and where said progression of colors changes both the hue and also the saturation of filtered colors in the progression in color space; and   projecting light through said one area at a first time to color said light using a first color at said area;   moving said set to a second area at a second time, and projecting light through said second area at said second time to color said light using a second color at said area.   
   
   
       19 . A method as in  claim 18 , wherein said arranging comprises arranging said color filters on a color wheel which is rotatable and which has a number of said color filters thereon forming the set. 
   
   
       20 . A method as in  claim 19 , wherein said wheel includes a rotatable hub, and a number of filters arranged around the hub, and where said filters and their order, form said progression of colors. 
   
   
       21 . A method as in  claim 18 , wherein said progression of colors of said first set have hues which always increase in a first direction passing from one color filter to another color filter, and saturations which always increase in a second direction, where said first direction and said second direction can be the same or different directions. 
   
   
       22 . A method as in  claim 18 , wherein said color filters have values in chromaticity space which form a non-straight line through said chromaticity space. 
   
   
       23 . A method as in  claim 18 , wherein said color filters collectively form a color set, and where there is a nonlinear relationship said color filters in said color set extending from a beginning point of the color set to an ending point of the color set. 
   
   
       24 . A method as in  claim 23 , wherein said color filters form a relation where any filter n in the set extending from filter  1  to filter x has a value of filter n=filter (n−1)*(nth root of) (filter x−filter  1 ). 
   
   
       25 . A method as in  claim 18 , further comprising using a computer to select values of said color filters.